Hi all,
I succeded testing the usb hostcontroller (sources from www.heeltoe.com
written by Brad Parker).
1. Hardware
- TQM823L board with mpc823e (PPC823EZTnnB2)
- connection between X7/7 (Timer 1 output) and X9/16 (/DREQ1) to
enable the spi/iic microcode patch
- 4 delay gates (74LVT244A) beetwen X32/1 resp. X32/3 (VM/VP outputs
of the PDIUSBP11A) and X32/2 resp. X32/4 (USBXRM and USBXRP inputs
of the mpc823e) required , power supply from X3/9 (+3,3V) an X3/3 (GND)
- connection of a high speed device (hub) to the usb connector required
(low speed devices are only detected behind this hub)
2. Software
- linux-2.4.4 kernel sources from ftp.denx.de
- m8xxhci.c from www.heeltoe.com (added as config option CONFIG_USB_MPC8xx
and to .../drivers/usb/...)
#ifdef CONFIG_TQM823L
#define USE_TIMER1_FOR_SOF
#define USE_PA4_CLK4
#undef POLL_FOR_HUB
#endif
- kernel configuration (.config)
CONFIG_UCODE_PATH=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
(for testing)
CONFIG_USB_MPC8xx=y
(don't include usb mouse and usb keyboard drivers for testing,
because the mouse an keyboard drivers claim the interfaces and
the sample driver cannot see any data transfers)
CONFIG_INPUT=y
CONFIG_INPUT_EVDEV=y
(mousedev and keybdev drivers don't link for ppc - undefined symbols)
3. Testing
- I used the sample usb driver from Alessandro Rubini and Jonathan Corbet
and plugged it as a module to the running kernel.
(http://examples.oreilly.com/linuxdrive2/ldd2-samples-1.0.1.tar.gz)
- I plugged a usb mouse and a usb keyboard to the external usb hub, connected to
the board.
- When I moved the mouse, pressed mouse buttons or keys on the keybord,
the kernel dumped the results to the console, so I think the host con-
troller works correctly.
Thanks a lot for all help and comments.
Now I want to check, if I can repeat the results with my FADS823 board,
but I'm not sure if there is a possibility to do the necessary hardware
modifications. Specially I don't have any idea how to insert the delay
gates. Any hints would be greatly appreciated
Christian Schroeder
Dr.-Ing. Christian Schroeder
Institut fuer Mikroelektronik- und Mechatronik-Systeme
Langewiesener Strasse 22
98693 Ilmenau
Telefon: +49 3677 678315
Telefax: +49 3677 678337
Mobil: +49 173 5789172
e-mail: christian.schroeder@imms.de
www: http://www.imms.de/~christi/cs.html
pgp: finger christi@finger.imms.de
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
Hello,
I think that your FAD823 is the same as my RPX-Lite 823.
I made it work in high speed mode (usb host and usb slave), but I could not
make it work with low speed USB device as you did.
Furthermore, I am not a HW guy, please inform me your advance.
Thanks and waiting for your success,
Jari Nguyen Trung Thanh
On Thursday 06 June 2002 17:48, Christian Schroeder wrote:
Hi all,
I succeded testing the usb hostcontroller (sources from www.heeltoe.com
written by Brad Parker).
1. Hardware
- TQM823L board with mpc823e (PPC823EZTnnB2)
- connection between X7/7 (Timer 1 output) and X9/16 (/DREQ1) to
enable the spi/iic microcode patch
- 4 delay gates (74LVT244A) beetwen X32/1 resp. X32/3 (VM/VP outputs
of the PDIUSBP11A) and X32/2 resp. X32/4 (USBXRM and USBXRP inputs
of the mpc823e) required , power supply from X3/9 (+3,3V) an X3/3 (GND)
- connection of a high speed device (hub) to the usb connector required
(low speed devices are only detected behind this hub)
2. Software
- linux-2.4.4 kernel sources from ftp.denx.de
- m8xxhci.c from www.heeltoe.com (added as config option CONFIG_USB_MPC8xx
and to .../drivers/usb/...)
#ifdef CONFIG_TQM823L
#define USE_TIMER1_FOR_SOF
#define USE_PA4_CLK4
#undef POLL_FOR_HUB
#endif
- kernel configuration (.config)
CONFIG_UCODE_PATH=y
CONFIG_USB=y
CONFIG_USB_DEBUG=y
(for testing)
CONFIG_USB_MPC8xx=y
(don't include usb mouse and usb keyboard drivers for testing,
because the mouse an keyboard drivers claim the interfaces and
the sample driver cannot see any data transfers)
CONFIG_INPUT=y
CONFIG_INPUT_EVDEV=y
(mousedev and keybdev drivers don't link for ppc - undefined symbols)
3. Testing
- I used the sample usb driver from Alessandro Rubini and Jonathan Corbet
and plugged it as a module to the running kernel.
(http://examples.oreilly.com/linuxdrive2/ldd2-samples-1.0.1.tar.gz)
- I plugged a usb mouse and a usb keyboard to the external usb hub,
connected to the board.
- When I moved the mouse, pressed mouse buttons or keys on the keybord,
the kernel dumped the results to the console, so I think the host con-
troller works correctly.
Thanks a lot for all help and comments.
Now I want to check, if I can repeat the results with my FADS823 board,
but I'm not sure if there is a possibility to do the necessary hardware
modifications. Specially I don't have any idea how to insert the delay
gates. Any hints would be greatly appreciated
Christian Schroeder
Dr.-Ing. Christian Schroeder
Institut fuer Mikroelektronik- und Mechatronik-Systeme
Langewiesener Strasse 22
98693 Ilmenau
Telefon: +49 3677 678315
Telefax: +49 3677 678337
Mobil: +49 173 5789172
e-mail: christian.schroeder@imms.de
www: http://www.imms.de/~christi/cs.html
pgp: finger christi@finger.imms.de
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/